Impeoved



HENRY BUTTS, CF NORWICH, CONNECTICUT.

Letters Patent No. 76,599, dated April 14, 1868; antcdatecl IarcL 28, 1868 IMPROVED FILE POR GROOVING ROLLS.v

t .Stigrhnle numb tu im time @met ttent fmt matting gert ci the sume.

TO ALL WHOM IT MAY CONCERN:

Be it known that I, HENRY BTTS, of Norwich, in the county ofNew London, and State of Connecticut,

have invented a new and useful Instrument for Filing the Grooves in Grooved-Metnl Rollers; and I do hereby declare the following to be a. full, clear, and exact description of the same, reference being had to the accompenying drawings, which are made a part of this specification.

The object of this invention is to provide an instrument with which the grooves of grooved-metal rollers may be filed perfectly straight and true. In the drawingsy Figure l represents a. side view.

Figure 2 represents a. section ofthe same.

This file .ismade of steel, hardened in the usual manner, of c uniform thickness and Width, and'having one or both edges plened bevelling, so as to get them all of the same bevel and thickness, to fit the groove i-n the rollers andworlr perfectly true. I

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

The within-described tool, as an article of manufacture, constructed and used as and for the purpose herein specified. v

H. L. BUTTS.

.Witnesses:

F. E. BECKWITH, Gsc. FRED. LATHROP. 

